"Write eight cylinders of water, inkstone dyed black; When you win hundreds of parents, you will get a phoenix in Yi Long. " From the story of China folk Liu Gongquan practicing calligraphy and painting soup.
It means: grinding ink and practicing calligraphy, exhausted eight cylinders of water, finished writing every day, I washed the inkstone in the waterlogged pool, and the water in the pool was black; Only by continuous learning and learning from the strengths of various schools can we write the words flying with dragons and phoenixes on paper.
Therefore, "writing eight cylinders of water" means that Liu Gongquan is very diligent in practicing calligraphy and washes his pen with eight cylinders of water. Liu Gongquan also became a famous calligrapher in the Tang Dynasty because of his diligent practice. His word structure is rigorous, rigid and flexible, open and generous, which is cherished by calligraphy circles and is known as "Yan Liu Jin Gu". But Liu Gongquan was still very dissatisfied with his calligraphy until he was old. In his later years, he lived in seclusion in the stork valley (now called Liugou) in the south of Huajing City, specializing in calligraphy and diligently practicing calligraphy until his death at the age of 88.
In modern times, "writing eight cylinders of water" means trying to finish one thing. Only by working hard and giving everything I have can we achieve great achievements and gains.